Question

1 . 2 . 3 . 4 . 5 . 6 1. In graphs of predation in which the prey density is on the x axis and the number of prey consumed is plotted on the y axis, which types of responses show predator satiation? i. Type I, ii. Type II, iii. Type III A. Type I only B. Type II only C. Type III only D. Type II and III E. Type I, II, III 2. Which of the following scenarios are likely to favor a specialist dietary strategy. A. The newt prey of a snake has toxic compounds in its tissues. B. Many shellfish are hard to find and require large handling time to open. C. Seeds which are rich in fats and proteins, have a modest handling time, and are hard to find. D. During their reproductive peak, turtle eggs are very abundant on the beaches in which birds are foraging. E. Warblers compete intensely for insects in pine trees.

Answer 1

QUESTION 1

In this case, we are talking about functional response which refers to the intake rate of a consumer (predator) in function with the density of food (prey). These functional responses are categorized in three main groups: type I, II and II

In type I, there is linear correlation between the intake rate (density of prey consumed) and density of food (density of prey). In type II, the same variables are used but it is observed a decelerating intake rate. Finally, something similar occurs in type III with some variations.

So, the correct answer is E. Type I, II, III

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